JP2002321879A - Communication device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of wiring inside of a car. SOLUTION: A terminal is provided for radio-communicating at a relatively near distance with an operation panel by relaying the operation panel arranged inside the car of an elevator and a control device of the elevator. Thus, since the terminal radio-communicates with the operation panel, the number of wiring inside of the car is reduced. Since the terminal communicates with the operation panel at a relatively near distance, certainty or reliability of communication is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a communication device for an elevator.

[0002]

2. Description of the Related Art Generally, an elevator car operation panel is
It comprises a control input device having destination floor registration buttons and their response lights, and a display device mounted on the upper part of the car and having an indicator light for displaying the current position of the car. Conventionally, these control input devices and indicators have been mounted by embedding holes in the car wall. Further, from each operation panel, a large number of wirings were output according to the number of destination floor registration buttons, response lights, indicator lights, and the like, and wiring was performed with 1: 1 wires to the equipment box above the car.

FIG. 3 shows an external structure of a conventional control input device. (A) is a view seen from the front,
(B) is the figure seen from the side. In FIG.
31 is a destination floor registration button and a registration floor response light, 22 is a door opening request button, 23 is a door closing request button, 21 is a maintenance staff call button, 20 is a speaker and a microphone, 33 is a lid for maintenance personnel only, 32 is maintenance A member locking lid locking device, 34 is a decorative panel, 36 is a control input device main body, 35 is a car wall, and 37 is a wiring.

FIG. 4 shows the appearance of a display according to the prior art. (A) is a diagram viewed from the front and (b)
Is a side view. In FIG. 4, reference numerals 51 to 58 denote car position indicators, 50 and 59 are driving direction indicators, 60 is a decorative panel, 61 is a display main body, 35 is a car wall, and 37 is a wiring.

In the prior art, the operation panel main body such as the control input device and the display device is embedded in the car wall, leaving the decorative panel, so that the wiring is invisible from the inside of the car.

Next, the configuration and operation of the conventional elevator will be described with reference to FIG. In FIG. 2, 1 is an elevator car, 2 is a hoistway wall, 3 is a tool box, 5 is a control device, 4 is a tail cord connecting the tool box 3 and the control device 5, 6 is a pulley, and 7 is lighting in the car. , 8 and 9 are control input devices, 10 is a display device, and 15 is a wiring connecting the operation box such as the control input devices 8, 9 and the display device 10 to the instrument box 3. When the passenger presses the destination floor registration button from the control input devices 8 and 9, the voltage of the corresponding electric wire in the wiring 15 changes.
This is taken into the microcomputer inside the appliance box connected to the wiring 15, the pressed destination floor registration button is determined, and the destination floor registration signal is transmitted to the control device 5 through the tail code 4. The control device 5 that has received this operates the car according to the destination floor registration contents. Also, the appliance box supplies power to the wiring connected to the registered floor response light corresponding to the pressed destination floor registration button, and turns on the registered floor response light.

As described above, signals are exchanged between the operation panel inside the elevator car and the equipment box by wiring.

On the other hand, the wiring between the car and the machine room is disclosed in Japanese Patent Application Laid-Open Nos.
As described in JP-A-282076, there is already an example of wiring saving by using wireless communication. Further, as a technique for wirelessly (infrared) communication between the operation panel in the car and the elevator control device, there is a technique described in JP-A-6-92560. Further, a technique described in Japanese Patent Application Laid-Open No. 3-46979 is known as a technique for wirelessly performing communication between an elevator hall indicator and a machine room to reduce wiring.

[0009]

In the prior art described above, a destination floor registration button is provided between each operation panel and the appliance box.
Wiring was performed with 1: 1 wires for the number of registered floor response lights and car position indicators. For this reason, when the number of floors of the building where the elevator is installed increases, the number of wirings also increases proportionately, and a great deal of labor has to be spent on wiring work. Also, in order to make the wiring drawn from the operation panel invisible from the inside of the car, it was necessary to pierce the operation panel with holes in the car wall. For this reason, not only is it necessary to drill holes in the car wall, but also if there is a request to change the mounting position of the operation panel or change the design inside the car for some reason in the future, Or the entire car wall had to be replaced, which increased costs.

In view of the above circumstances, an object of the present invention is to provide an elevator communication device suitable for reducing the number of wirings inside a car.

[0011]

One means for solving the above-mentioned problem is to relay an operation panel provided inside an elevator car and a control device of the elevator, and to wirelessly communicate at a relatively short distance from the operation panel. It is to have a terminal for communication.

According to this means, since the operation panel inside the car and the terminal perform wireless communication, the number of wirings inside the car is reduced. Furthermore, since the operation panel and the terminal communicate at a relatively short distance, the influence of noise is suppressed, and so on.
Communication reliability or reliability is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an elevator communication device according to a first embodiment of the present invention. In FIG.
Reference numeral 11 denotes a wireless terminal installed inside the appliance box 3 provided on the top of the car 1, and is connected to the elevator control device 5 through the tail cord 4. Reference numeral 12 denotes an antenna connected to each operation panel and a wireless communication device inside the wireless terminal, reference numeral 13 denotes a solar cell, and other reference numerals are the same as those in FIG. In addition, the installation location of the wireless terminal 11 in the car 1 can be appropriately changed.

The present embodiment is a system including three operation panels 8, 9, and 10 provided inside the car 1 and one wireless terminal 11, and among the three operation panels, 8 and 9
2 function as a control input device and 10 functions as a display device. Hereinafter, the control input device 8 will be referred to as control input device 1 and the control input device 9 will be referred to as control input device 2. The power source of each operation panel converts the light emitted from the in-car lighting 7 into electric power by a solar cell 13 and stores the electric power in a secondary battery described later to cover the power. Signal exchange between the operation panel and the control device 5 is performed by the operation panel and the wireless terminal 1.
1 is performed by wireless communication, and the communication between the wireless terminal 11 and the control device 5 is performed via the tail code 4.

The operation panels 8, 9, 10 and the wireless terminal 11
The wireless communication is performed with each other via a wireless communication device built in each operation panel and a wireless communication device built in the wireless terminal itself. A signal transmitted from each operation panel to the wireless terminal 11 is subjected to some signal processing or data processing via the wireless terminal 11, that is, via the wireless terminal 11 or by the wireless terminal 11. The data is transmitted to the control device 5 via the code 4 by wire. The signal transmitted from the control device 5 is similarly transmitted to each operation panel via the wireless terminal 11. As described above, a signal related to communication between each operation panel and the wireless terminal 11 is transmitted to the wireless terminal 11.
Is transmitted between the control unit 5 and the control unit 5. That is, each operation panel and the control device 5 communicate with each other via the wireless terminal 11.

Since the operation panels 8, 9, and 10 are provided inside the car and the radio terminals 11 are provided in the same car, each operation panel and the radio terminals 11 are located at relatively short distances. Therefore, communication between each operation panel and the wireless terminal 11 is hardly affected by external noise. Furthermore, since each operation panel and the wireless terminal 11 are located close to each other, short-range wireless communication such as low-power wireless communication can be applied to wireless communication between the two.
For example, when the frequency band of the wireless communication device is 322 MHz or less and the electric field strength at a position 3 m away from the wireless communication device is 5
00 μV / m or less, or the frequency band of the wireless communication device is 3
22 M to 10 GHz and the electric field strength at a position 3 m away from the wireless communication device is 35 μV / m or less, or the frequency band of the wireless communication device is 10 G to 150 GHz and the electric field strength at a position 3 m away from the wireless communication device is 500 μV / M
Or the antenna power of the wireless communication device is 10 mW or less.

Next, the control input device and the display device will be described with reference to the drawings.

FIG. 5 shows an external structure of the control input device according to the present embodiment. (A) is the figure seen from the front, (b) is the figure seen from the side. In FIG.
Reference numeral 0 denotes a solar cell, 71 denotes a transmitting / receiving antenna of a built-in wireless communication device, 72 denotes a control input device main body, 35 denotes a car wall, and other symbols are the same as those in FIG.

FIG. 6 shows an external structure of the display device according to the present embodiment. (A) is a view seen from the front,
(B) is the figure seen from the side. 6, reference numeral 80 denotes a solar cell, 81 denotes a transmitting / receiving antenna of a built-in wireless communication device, 82 denotes a display main body, 35 denotes a car wall, and other symbols are the same as those in FIG. In the present embodiment, the operation panel is attached to the car wall in a non-embedded manner by eliminating the wiring drawn from the operation panel by making the communication and power wireless. That is, as shown in FIGS. 5 and 6, the operation panel can be attached to the car wall so as not to impair the appearance. Further, by providing a magnet, a suction cup, and the like on the back surface of the operation panel, that is, the surface facing the wall surface of the car, the operation panel can be detachably attached to the wall surface of the car.

Next, the outline of the contents of communication between each operation panel, wireless terminal, and control device will be described with reference to FIG.

In FIG. 7, 5 is a control device, 8 is a control input device 1, 9 is a control input device 2, 10 is a display, and 11 is a wireless terminal.

Reference numeral 90 denotes a signal from the wireless terminal 11 to the control device 5, which includes an additional registration floor signal, a car lighting off request signal, a voice signal, and the like. Although the details will be described later, the additional registration floor signal is a signal generated when the destination floor registration button of the control input device is pressed, and transmitted to the control device 5 via the wireless terminal 11 as described above. Is done. The voice signal is a conversation between the maintenance staff and the passenger when the maintenance staff call button is pressed.

Reference numeral 91 denotes a signal from the control device 5 to the wireless terminal 11, which includes an additional registration completion signal, a registered floor extinguishing signal, a car position signal, a door opening / closing signal, a car lighting control signal, a voice signal, and the like. The additional registration completion signal is a signal that notifies the wireless terminal 11 that the control device 5 has received the additional registration floor signal described above. The registered floor turn-off signal is, for example, a signal instructing to turn off the registered floor response light when the car arrives at the registered floor. The car position signal is a signal transmitted to the display 10 via the wireless terminal 11, and is a signal for notifying the display of the current position of the car.

Reference numeral 92 denotes a signal from the control input device 1 to the wireless terminal 11, which includes an additional registration floor signal, a door opening / closing signal, a car lighting control signal, a reply request response signal, a voice signal, and the like. The car lighting control signal, which will be described in detail later, charges the secondary battery by generating an electromotive force in the solar battery when the remaining amount of the secondary battery of the control input device 1 becomes smaller than a predetermined value. Therefore, this is a signal requesting the wireless terminal 11 to turn on the lighting inside the car, or requesting turning off the light when charging is completed. The reply request response signal will be described later in detail,
This is a response signal to the reply request signal transmitted from the wireless terminal 11 to the control input device 1.

Reference numeral 93 denotes a signal from the wireless terminal 11 to the control input device 1, which includes an additional registration completion signal, a registered floor lighting signal, a registered floor unlit signal, an alarm suppression signal, a reply request signal, a voice signal, and the like. The registration floor lighting signal is a signal for notifying a new registration floor to a control input device other than the source of the additional registration floor signal when the wireless terminal 11 receives the additional registration completion signal from the control device 5. The alarm suppression signal is a signal for suppressing an alarm buzzer built in the control input device from sounding, and when the control input device is taken out by someone, the operation panel as the control input device generates an alarm. Provides a mechanism. Normally, the control input receives the alarm suppression signal, so that the alarm does not sound. The reply request signal refers to the wireless terminal 11
This signal is transmitted to confirm whether the communication between the control input device 1 and the control input device 1 is normal, and the control input device 1 that has received the signal transmits a reply request response signal to the wireless terminal 11 that is the transmission source. It is supposed to. If a reply request response signal is not obtained after a certain period of time, it is suspected that there is a communication error or a failure of the wireless communication device built in the wireless terminal 11.

Reference numeral 94 denotes a signal from the wireless terminal 11 to the control input unit 2, and the content of the signal is the same as that of the above-mentioned 93.

Reference numeral 95 denotes a signal from the control input unit 2 to the wireless terminal 11, and the content of the signal is the same as that of 92 described later.

Of the above-described signals, the present embodiment has 92
Although signals 97 to 97 are transmitted wirelessly and signals 90 and 91 are transmitted by wire communication using a tail code, the communication of the tail code portion may be made wireless. In addition, the control input device,
The number of indicators may be further increased.

Next, a communication method performed by the wireless terminal, the control input device 1, the control input device 2, and the display device will be described with reference to FIG. 8, 100 is a time axis of the wireless terminal, 101
Is a time axis of the control input device 1, 102 is a time axis of the control input device 2, and 103 is a time axis of the display device. Reference numerals 104 to 111 denote audio data. The position on FIG. 8 indicates the source and transmission time of the audio data, and the width indicates the time required for transmission. Numerals 120 to 126 denote non-speech data. As in the case of speech data, the position indicates the source and transmission time of the data, and the width indicates the time required for transmission.
The transmission destination of each voice data and non-voice data is on the time axis indicated by the arrow. As described above, each wireless communication device transmits and receives data while quickly switching between transmission and reception. Also, each data has a destination at the beginning,
Signals other than those addressed to you can be ignored. Regarding the transmission timing, especially in the case of voice data, the A / D converted data is converted into small packets and transmitted at substantially constant time intervals so that the conversation does not become discontinuous.

Next, the internal configuration of the wireless terminal, control input device, and display device for realizing the above functions will be described.

FIG. 9 shows the internal configuration of the wireless terminal 11.
In FIG. 9, the insides of the broken lines are wireless terminals 11 and 160, wireless communication devices, 12 is an antenna, 150 is a transmitter inside the wireless communication device, 151 is a receiver inside the wireless communication device, 152
Is a control unit that controls the entire wireless communication device. 153
Is a device number setting switch, and the value set here is
The destination of the transmission data. Reference numeral 155 denotes an A / D converter, which converts an analog signal transmitted from the control device 5 via a tail code into a digital signal, and inputs the digital signal to the wireless communication device 160. Reference numeral 156 denotes a D / A converter, which converts a digital signal transmitted from the wireless communication device 160 into an analog signal and transmits the analog signal to the control device 5. 157
Is a door motor driving device, and 158 is a lighting device in the car. A microcomputer 154 is connected to the wireless communication device 160, the control device 5, the door motor driving device 157, the lighting device 158, and the like, and performs communication and control with these devices. In this configuration, the wireless communication device 1
When the data is received by the microcomputer 60, the microcomputer 1
Request an IRQ2 interrupt to 54. Upon receiving the IRQ2 interrupt, the microcomputer 154 starts receiving data from the wireless communication device 160. When transmitting data to the wireless terminal 11, the control device 5 requests an IRQ7 interrupt to the microcomputer 154. Upon receiving the IRQ7 interrupt, the microcomputer 154 starts receiving data from the control device.

FIG. 10 shows the internal configuration of the control input device.
In FIG. 10, reference numeral 13 denotes a solar cell that generates power by receiving car illumination, 181 denotes a secondary battery that stores the power generated by the solar cell 13, and 180 denotes that the power of the secondary battery 181 flows back to the solar cell 13. 182, 183 are voltage-dividing resistors that divide the voltage of the secondary battery 181; 184, the voltage value divided by the voltage-dividing resistors 182, 183 is converted into a digital signal, which is sent to the microcomputer 154 as Vbat. A / D converter for input, 194
Is a D / A converter for converting a digital audio signal received by the wireless communication device 160 into analog, 195 is an amplifier for amplifying the output of the D / A converter 194 and driving the speaker 200, and 197 is an output of the microphone 201. An amplifier 196 for amplifying the signal, an A / D converter for A / D converting the signal of the amplifier 197 and transmitting the signal to the wireless communication apparatus 160, 1
Reference numeral 98 denotes a timer circuit for requesting the microcomputer 154 to send an interrupt signal IRQ5 at a constant period (for example, one second).
99 is a buzzer driven by the microcomputer 154, 185 is a destination floor registration button, 186 and 190 are pull-up resistors, 187 is a NOT circuit, 193 is an AND circuit, 191 is a destination floor response light, 192 is a current limiting resistor,
Reference numeral 88 denotes a door open request button, and 189 denotes a door close request button. Other reference numerals and functions are the same as those in FIG. Next, the circuit operation of FIG. 10 will be briefly described. When any one of the destination floor registration buttons 185 is pressed, the output of the AND circuit 193 connected to the IRQ1 request input terminal becomes HIG.
It changes from H to LOW. Microcomputer 154
Internally, a setting is made in advance to accept an IRQ1 interrupt when the IRQ1 request input terminal changes from HIGH to LOW. Then, when the IRQ1 interrupt is received,
The microcomputer is programmed so as to detect an input port connected to the output of the NOT circuit 187. As a result, only when the destination floor registration button is pressed,
Input port detection can be performed. Each switch of the input port and the destination floor registration button 185 is connected 1: 1 via a NOT circuit, and when the button is pressed, 1 is set to the bit of the corresponding input port. On the other hand, with respect to the output port, each indicator light of the destination floor response light and the output port are 1: 1 via the current limiting resistor 192.
And the indicator light is turned on by setting 1 to the corresponding bit of the output port. When the door open request button 188 is pressed, an IRQ4 interrupt is requested to the microcomputer by pressing the button. The microcomputer having received the IRQ4 interrupt transmits a door open signal to the wireless terminal. Is programmed as The same applies to the door close request button, and this processing is shown in FIG. As described above, there are many interrupt factors in the microcomputer 154, but by setting the priority of the IRQ4 to the highest priority, it is possible to ensure safety and to input an alarm cancel key described later.

FIG. 11 shows the internal structure of the display. FIG.
In FIG. 1, reference numeral 220 denotes a car position indicating lamp, and other reference numerals and functions are the same as those in FIGS. Next, the operation of the control unit 152 of the wireless communication device 160 mounted on each operation panel will be described with reference to a case where the control unit 152 is mounted on the control input device shown in FIG. I do. FIG. 12 is a flowchart showing a transmission procedure of the control unit 152. First, when an output signal of the microcomputer 154 or the A / D converter is input to the control unit 152, an operation of switching the antenna to the transmitter is performed. Next, it is determined in step 232 whether or not the data is audio data. If the data is audio data, the process proceeds to step 233, where the data type is packetized as audio data, and transmitted at a constant period as described with reference to FIG. If it is determined in step 232 that the data is not audio data, it is assembled into a packet and transmitted normally as shown in FIG. Then, after the transmission is completed, the antenna is switched to the receiver side and the apparatus stands by in the reception state.

Next, the processing at the time of reception will be described with reference to FIG. When the receiver 151 receives the signal, it checks the destination,
It is determined in step 263 whether or not it is addressed to itself. If it is addressed to itself, the packet is disassembled in step 261 to confirm the data type. In step 265, it is determined whether or not the data is audio data. If the data is audio data, the information is output to the D / A converter, and the process ends. If it is not addressed to itself in step 263, the process ends. If the data is not audio data in step 265, the microcomputer 154
A Q2 request signal is output, data is sent to the microcomputer 154, and the process is terminated.

Next, the internal processing of the microcomputer when the destination floor registration button is pressed on the control input device of FIG. 10 will be described with reference to FIG. Destination floor registration button 1
If any of 85 is pressed, the IRQ
One interrupt request occurs. Upon receiving this interrupt request, the process proceeds to step 291 and stores the result of detecting the input port in the register R2. At this time, the register R
Each bit state of 2 is 1: 1 with the state of the destination floor registration button.
And when the corresponding bit is 1, the button is being pressed. Next, at step 292, the current lighting content is stored in the register R1. This can be realized by transferring the contents of the register holding the state of the output port to R1. Next, at step 293, the bit string OR of the registers R1 and R2 is taken and stored in the register R3.
As a result, in the register R3, information in which the newly generated destination floor registration is added to the current destination floor registration information is recorded. Next, at step 295, the contents of R1 and R
3 is determined to be different. What is different?
This means that a destination floor registration button other than the destination floor already registered has been pressed. If there is no difference in step 295, the process proceeds to step 302, and the process ends. If a difference is found in step 295, step 29
6 and issue a request number. This request number is a numerical value represented by 8 bits from 0 to 255, and is incremented by one for each issue, and returns to 0 after 255,
Thereafter, it is repeated. The request number is used to cancel the processing result of step 300 described later when an additional registration completion signal is not obtained from the control device. Next, at step 297, the register R3 and the register R
A bit string EXOR (exclusive OR) operation of 1 is performed, and the result is stored in the register R2. By this operation, only the bit corresponding to the newly generated destination registration floor remains as 1 in the register R2, and the bit corresponding to the already registered floor becomes 0. Next, in step 298, the contents of the register R2 are stored in the table 1 in the format shown in FIG. 17 together with the request number issued in step 296. In FIG. 17, for example, assuming that this elevator system is installed in a building from the B1 floor to the 7th floor, the additional registration floor of the request number 0 in Table 1 considers the rightmost bit to correspond to the B1 floor. The third floor. Next, in step 299, the request number is stored in a variable e_req. By this operation, the request number issued recently is always stored in the variable e_req. Next, in step 300, the lighting content is updated to the content of the register R3. As a result, the destination floor response light is updated to the content where the response light corresponding to the newly pressed destination floor registration button is additionally lit in the current destination floor response. Next, in step 301,
The contents of the register R2 are transmitted to the wireless terminal together with the request number. Thereby, the newly generated registration floor information and request number are transmitted to the wireless terminal. FIG. 1 shows the data format of the additional registration floor signal transmitted at this time.
It is shown in FIG. In FIG. 15, reference numeral 350 denotes a transmission destination, and 351
Is the transmission source, 352 is the data type (additional registration floor), 353
Is a request number, and 354 is additional registration floor data.

FIG. 16 shows the timer circuit 198 in FIG.
Is activated in response to an IRQ5 interrupt request signal generated in a one-second cycle, and turns off the destination floor response light for an additional registration floor signal for which no additional registration completion signal is obtained even after one second or more. Perform processing. Upon receiving the IRQ5 interrupt, in step 381, the timer interrupt number t_num is fetched from the memory. The timer interrupt number t_num is a numerical value represented by 2 bits from 0 to 3, and as described later, 1 is added for each interrupt of IRQ5, returns to 0 after 3, and is repeated thereafter. At steps 382, 384 and 385, the timer interrupt number is updated. Next, in step 386, the latest request number is extracted from the above-described variable e_req, and t_num
Together with L_req in Table 2.

FIG. 18 shows the format of Table 2. In steps 387 to 393, based on the current timer interrupt number t_num, referring to Table 2, the request number that was latest when the IRQ5 interrupt occurred two seconds ago and the request number that was latest when the IRQ5 interrupt occurred one second ago Take out. Next, in Step 394, the bit string OR of the additional registration floor data generated between the two request numbers extracted in Steps 387 to 393 is obtained by referring to Table 1, and the result is stored in the register R4. Next, at step 395, the bit string N of the register R4 is set.
OT is taken and stored again in the register R4. Then step 3
At 96, a bit string AND of the content of the register R4 and the current lighting content is obtained, and the display is updated with the result.

The above steps 380 to 397
, All the destination floor response lights corresponding to the additional registered floor that occurred 1 to 2 seconds before are turned off. However, normally, the destination floor response light corresponding to the additional registered floor is not turned off. This is because an additional registration completion signal in the format shown in FIG. 21 is transmitted from the control device 5 via the wireless terminal 11 according to the additional registration floor signal. The state of the processing will be described with reference to FIG. When the wireless communication device 160 receives the signal, an IRQ2 interrupt request is issued to the microcomputer 154.
Upon receiving the IRQ2 interrupt, a signal is fetched from the wireless communication device, and the content is analyzed in step 601. Next, in step 602, it is determined whether or not it is an additional registration completion signal. If it is an additional registration completion signal, the request number is extracted in step 603. Then step 60
All bits of the additional registered floor data of the table 1 corresponding to the request number extracted in step 4 are cleared to zero, and the process is terminated. This makes it possible to prevent the destination floor response light from being turned off by a series of processes started by the above-described IRQ5 interrupt. If it is determined in step 602 that the signal is not an additional registration completion signal, the process proceeds to step 606,
It is determined whether the signal is a registered floor light-off signal. If it is determined that the signal is a registered floor light-off signal, the light-off floor information is stored in the register R5.
To be stored. The turn-off floor information is bit string data in which a bit corresponding to a destination floor response light to be turned off in the format shown in FIG. Next, at step 608, the bit string NOT of the register R5 is taken and stored again in the register R5. Next, in step 609, a bit string AND of the content of the register R5 and the current lighting content is obtained, the display is updated with the result, and the process ends. If it is determined in step 606 that the signal is not a registered floor light-off signal, step 61
Move to 0. Here, it is determined whether or not the registered floor lighting signal is present. If the signal is a registered floor lighting signal, the process proceeds to step 611 to store the lighting floor information in the register R5. Next, in step 612, a bit string OR of the contents of the register R5 and the current lighting contents is obtained, the display is updated with the result, and the process is terminated. If it is determined in step 610 that the signal is not a registered floor lighting signal, the process ends.

Here, the aforementioned timer interrupt number t_
num, a request number associated with the occurrence of an additional registration floor, and variables L_req0 to be updated for each timer interrupt.
The mutual timing of L_req3 will be described with reference to FIG.
FIG. 19 shows a state after the system is started. Since all variables are initialized to zero, the first IRQ5
Before an interrupt occurs, t_num, request number,
L_req0 to L_req3 are all 0. 1
Due to the second occurrence of IRQ5, the timer interrupt number is incremented by 1, and t_num = 1. At this time, L_req1
Is updated, but the last issued request number is 0
Therefore, L_req1 = 0 remains. Second I
When the RQ5 interrupt occurs, it is updated to t_num = 2. At this time, L_req2 is updated, but since the request number has not been issued since 0, L_req2 =
It becomes 0. When the third IRQ5 interrupt occurs, t_
num = 3 is updated. L_re updated at this time
Since q3 has the first request number issued immediately before, L_req3 = 1. As described above, by updating L_req0 to L_req3 in synchronization with the timer interrupt IRQ5, the request number generated one to two seconds ago can be known. Thus, by referring to the table 2, it is possible to know all the additional registered floors that occurred 1 to 2 seconds ago.

The internal processing procedure of the control input device has been described above. Next, the internal processing of the microcomputer of the wireless terminal 11 having the internal configuration of FIG. 9 will be described with reference to FIGS. When wireless communication apparatus 160 receives a signal addressed to itself, it issues an IRQ2 interrupt request to the microcomputer. When this IRQ2 interrupt is accepted, FIG.
As shown in (1), it is determined in step 681 whether or not the signal is an additional registration floor signal. If it is an additional registration floor signal, at step 682, the source device number included in the received data,
The request number and the additional registration floor data are transmitted to the control device 5, and the process is terminated. On the other hand, if it is determined in step 681 that the signal is not the additional registration floor signal, step 684
Then, it is determined whether or not the signal is a door open / close signal. Here, if it is determined that the signal is a door open / close signal, step 68
At 5, it is determined whether or not it is a door open signal. Here, if it is determined that the signal is the door open signal, the process proceeds to step 686, where the door is opened and the process is terminated. If it is determined in step 685 that the signal is not a door open signal, a door closing operation is performed in step 687, and the process ends. If it is determined in step 684 that the signal is not a door opening / closing signal, in step 688, it is determined whether the signal is a car lighting control signal. Here, if it is determined that the signal is a car lighting control signal,
At step 689, it is determined whether or not the signal is a lighting signal. If it is determined that the signal is a lighting signal, a car lighting lighting process is executed in step 690, and the process ends. Step 689
If it is determined at step 69 that the signal is not a lighting signal, step 69
In step 1, a car illumination turn-off request signal is transmitted to the control device 5, and the process ends. If it is determined in step 688 that the received signal is not a car lighting control signal, the process ends.

Next, a process when the wireless terminal receives a signal from the control device 5 will be described with reference to FIG. IRQ7
When an interrupt is received, data from the control device is fetched and it is determined in step 711 whether or not the signal is an additional registration completion signal. The additional registration completion signal received at this time includes an additional registration request source (source), a request number, and additional registration floor data. Here, if it is determined that the signal is an additional registration completion signal, in step 712, an additional registration completion signal is transmitted to the additional registration request source (source) together with the request number. (The processing of the request source receiving this has already been described with reference to FIG. 20.) Next, in step 713, the registered floor is lit with the contents of the additional registered floor data for the control input devices other than the request source. The signal is transmitted, and the process ends. Thus, a mechanism can be realized in which the information of the destination floor registration button is reflected on the destination floor response light of the control input device other than the request source. If it is determined in step 711 that the data is not additional registration floor data, step 71
At 5, it is determined whether the signal is a registered floor light-off signal. If it is determined that the signal is a registered floor extinguishing signal, the process proceeds to step 716, where the registered floor extinguishing signal is transmitted to all the control input devices, and the process ends. If it is determined in step 715 that the signal is not a registered floor light-off signal, the process proceeds to step 717 to determine whether the signal is a car position signal. If the signal is the car position signal, the car position signal is transmitted to the display 10. If it is determined in step 717 that the signal is not a car position signal, the process proceeds to step 719 to determine whether the signal is a door open / close signal. If it is determined that the signal is a door open / close signal, it is determined in step 720 whether the signal is a door open signal. If it is determined that the signal is a door open signal, a door open operation is performed in step 721, and the process ends. Step 72
If it is determined that the signal is not a door open signal at 0, a door closing operation is performed at step 722, and the process ends. If it is determined in step 719 that the signal is not a door open / close signal,
The process proceeds to step 723, where it is determined whether the signal is a car lighting control signal. If it is determined that the signal is a car lighting control signal, it is determined in step 724 whether or not the lighting is on. If it is a lighting lighting signal, the process proceeds to step 725, where car lighting lighting processing is executed, and the processing ends. If it is determined in step 724 that the lighting is not on, the process proceeds to step 726, where the car lighting extinguishing process is performed, and the process ends. If it is determined in step 723 that the received signal is not a car lighting control signal, the process ends.

The processing of the wireless terminal 11 has been described above.
Next, the processing inside the microcomputer of the display having the internal configuration of FIG. 11 will be described with reference to FIG. When the wireless communication device 160 receives the signal, the microcomputer 1
An IRQ2 interrupt request is issued to 54. IRQ2
Upon receiving the interrupt, a signal is fetched from the wireless communication device, and the content is analyzed in step 741. Next, in step 742, it is determined whether or not the signal is a car position signal. If it is determined that the signal is a car position signal, the process proceeds to step 743 to perform a process of updating the current display with the received car position information, and terminate the process. . FIG. 27 shows the format of the car position signal received at this time. If it is determined in step 742 that the signal is not a car position signal, the process ends.

Next, a process for managing the remaining amount of the secondary battery mounted on each operation panel will be described with reference to FIG. The battery management process in FIG. 28 is a process that is executed constantly or periodically or irregularly according to the capacity of the secondary battery. When the process is executed, in step 771, a comparison is made between Vbat representing the voltage between the terminals of the secondary battery and Vbat_low which is a voltage value when the remaining battery power is insufficient. Here, when this processing was executed last time, Vbat> Vbat
_Low, but in this execution, Vbat <Vba
If it is t_low, it means that the remaining amount of the battery is less than the predetermined value, and the process proceeds to step 772, where a car illumination lighting request signal is transmitted to the wireless terminal.
Then, in step 773, the registration floor response light or the car position indicator light is switched to the blinking operation, and the process is terminated. By such a blinking operation, consumption of the secondary battery can be suppressed. If the determination condition in step 771 is not satisfied, the process proceeds to step 775, where Vbat is compared with Vbat_high which is a voltage value when the remaining battery level is sufficient. Here, when this processing was executed last time, V
When bat <Vbat_high is satisfied but Vbat> Vbat_high is satisfied in this execution,
Since it means that the charging of the battery has sufficiently proceeded, the process proceeds to step 776, and otherwise, the process ends.
In step 776, a car lighting off request signal is transmitted to the main terminal. Then, the process proceeds to step 777, in which the blinking operation of the registered floor response light or the car position display light is canceled.

FIG. 29 shows the format of the car illumination control signal transmitted to the wireless terminal by executing this processing.

Next, the mechanism of the take-out alarm system mounted on the control input device will be described with reference to FIG. FIG.
7A is a diagram illustrating main processing of the carry-out alarm system, and FIG. 8B is a diagram illustrating alarm release processing. This alarm system does not sound the buzzer while receiving the alarm suppression signal transmitted from the wireless terminal at a constant period (for example, 2 seconds), but it sounds when the reception stops for more than 10 seconds, for example. I have. The alarm can be released by pressing the door open button while pressing a certain combination of destination floor registration buttons. Hereinafter, the details will be described. When the take-out alarm system is activated, it is determined in step 801 whether the alarm has been released. Here, if it is determined that the alarm has been released, the alarm system ends. Step 8
If it is determined in step 01 that it has not been released, step 80
Move to 3. Here, 1 from the previous alarm suppression signal reception
It is determined whether 0 seconds or more have elapsed. If 10 seconds or more have elapsed, the process proceeds to step 804, and the buzzer sounds. If 10 seconds or more have not elapsed in step 803, the process returns to step 801. When the buzzer sounds in step 804, the process proceeds to step 805, and it is determined whether the alarm has been released. If it is determined that the alarm has been released, the process proceeds to step 806, the buzzer is stopped, and the process ends. If it is determined in step 805 that the alarm has not been released, step 805 is executed again, and the buzzer stop processing of step 806 is not performed until it is determined that the alarm has been released. As described above, the alarm is released by first pressing the door open button while pressing a certain combination of destination floor registration buttons (alarm release key).
At this time, since the destination open registration button is pressed,
1 interrupt has been accepted, but since the priority of the IRQ4 interrupt is higher than IRQ1, IRQ1 is interrupted,
Move to step 807. Subsequently, a door open signal is transmitted in step 808, but this is not related to the alarm release. Next, in step 809, the result of detection of the input port is stored in the register R2, and the flow advances to step 810. In step 810, it is determined whether or not the content of R2 matches the alarm release key. If they match, the alarm is released in step 811 and the process ends. R2 in step 810
If the content does not match the alarm release key, the process ends.

As described above, when the remaining amount of the secondary battery is equal to or less than the predetermined value, the wireless communication device of the operation panel transmits a wireless signal for turning on the illumination inside the car. Not only the embodiment, but also applies to an elevator communication device that includes a wireless communication device and a secondary battery that supplies power to an operation panel and a solar cell for charging, and communicates with an elevator control device via the wireless communication device. it can. In addition, when the remaining amount of the secondary battery is equal to or less than a predetermined value, the indicator light or the response light of the operation panel blinks. The present invention can be applied to an elevator communication device that communicates with an elevator control device via this wireless communication device. further,
The function that the operation panel generates an alarm when the operation panel is removed from the wall inside the car, which is the installation location, or when it is removed and is likely to be taken out of the car,
The present invention can be applied not only to the present embodiment but also to an elevator communication device that has a wireless communication device and communicates with an elevator control device via the wireless communication device.

Next, FIG. 31 shows a second embodiment in which the radio communication device inside the radio terminal is a dual system. FIG.
In FIG. 1, reference numeral 841 denotes a wireless communication device A, reference numeral 842 denotes a wireless communication device B, and other reference numerals are the same as those in FIG.
The wireless communication device A and the wireless communication device B have the same function, and the function is the same as that of the wireless communication device 160 described above. However, one of the wireless communication devices is usually used, and it is assumed that the wireless communication device A
Therefore, the following explanation will be given.

FIG. 32 is an internal configuration diagram of the wireless terminal when the wireless communication apparatus is a dual system. In FIG. 32, 19
Reference numeral 6 denotes an A / D converter for converting an analog signal sent from the control device 5 into a digital signal, and its function is the same as that of the A / D converter 155 described with reference to FIG. 197
Is a D / A converter for converting digital audio data sent from the wireless communication device into an analog signal, and its function is the same as that of the D / A converter described with reference to FIG. 843
Is a switch for switching the signal output destination of the A / D converter 196 to the wireless communication devices A and B. 844 is a switch for inputting audio data to be input to the D / A converter 197 to the wireless communication devices A and B. This is a switch for switching. FIG.
A new IRQ6 interrupt terminal, which has not been described above, is newly added. This is an interrupt request signal that calls the same function as the interrupt IRQ2 described above.

Next, the processing in the case where the radio communication apparatus is a dual system will be described with reference to FIG. What is described in FIG. 33 is a process of reliably detecting the failure of the wireless communication device A and switching to the wireless communication device B. This failure detection and switching processing is performed regularly or irregularly at a frequency that does not interfere with normal processing. When the process is started in step 860, the process proceeds to step 861 and the wireless communication device A transmits a reply request signal to the display. The format of this reply request signal is, as shown in FIG.
0, source 901, data type 902, and reply request code 903. In this reply request signal, the destination is set to the display, the source is set to the wireless communication device A,
The reply request code is sent with a fixed numerical value. The received operation panel sends back a reply request response signal with the received reply request code. Step 86
After waiting one second in step 2, it is determined in step 863 whether or not there is a reply from the display. If there is a reply, the flow shifts to step 864 to determine whether the received reply request code matches the transmitted code. Here, if they match, the process ends. In step 863, if there is no reply from the display unit, or if the reply request code does not match the code sent at step 864,
In Step 866, the wireless communication device A transmits a reply request signal to the control input device 1. Thereafter, in steps 867 to 869, the same processing as performed for the display 2 is performed. If there is a reply and the request code matches, the processing ends because the wireless communication device A has not failed. Conversely, if there is no reply or the codes do not match, a similar reply request signal is sent to the control input device 2 (steps 870 to 873). Here, if there is no further reply or the codes do not match, the process proceeds to step 876. In step 876, the wireless communication device B transmits a reply request signal to the display. Then, after waiting for one second in step 877, it is determined in step 878 whether there is a reply from the display. If there is a reply, it is determined in step 879 whether the request codes match, and if they match, step 891
The wireless communication device to be used thereafter is switched from A to B. If there is no reply from the display in step 878 or if the request codes do not match in step 879, the process moves to step 881 and the wireless communication device B sends the control input device 1
To send a reply request signal. After a lapse of one second, step 88
It is determined in step 3 whether or not there is a reply, and if so, it is determined in step 884 whether the request codes match. If the codes match, the flow shifts to step 891 to switch the wireless communication device to be used thereafter from A to B. If there is no reply in step 883 or the request codes do not match in step 884, a reply request signal is transmitted from the wireless communication device B to the control input device 2 in step 885. After waiting one second in step 886, it is determined in step 887 whether or not there is a reply. If so, in step 888, it is determined whether the received code matches the transmitted code. If they match, step 89
Then, the wireless communication device to be used is switched from A to B. If there is no reply from the control input unit 2 or the codes do not match in step 887, the flow shifts to step 889 to notify the control device 5 of the in-car communication abnormality, and ends the processing. After the wireless communication device is switched from A to B in step 891, a failure of the wireless communication device A is reported to the control device 5 in step 892. Next, in step 893, FIG.
A / D and D / A conversion ports of switches 843 and 844
To switch to the wireless communication device B side. Then step 8
At 94, all the operation panels are notified that the wireless communication device of the wireless terminal has been changed from A to B. Upon receiving this notification, all the operation panels perform a process of converting the destination of the main wireless terminal from the wireless communication device A to the wireless communication device B.

FIG. 35 shows an elevator according to a third embodiment of the present invention. The elevator car 1 moves up and down in the hoistway 2000 provided in the building on the third floor. This figure shows each case where car 1 is close to the first and third floors.
It is shown in one figure for convenience. In the present embodiment, the wireless terminal 11 is provided on the floor 1000 side of each floor. An operation panel 8 having a wireless communication device is provided inside the car 1 as in the above-described embodiment. The wireless terminal 11 and the elevator control device 5 communicate with each other by wire. When car 1 is located near the platform 1000,
That is, when any one of the wireless terminals 11 approaches the operation panel 8, the wireless terminal 11 and the operation panel 8 wirelessly communicate with each other via a wireless communication device incorporated therein.

Since the operation panel 8 and the radio terminal 11 communicate with each other when they come close to each other, the communication between the operation panel 8 and the radio terminal 11 is hardly affected by external noise. Further, as in the above-described embodiment, short-range wireless communication such as low-power wireless communication can be applied to wireless communication between the two. FIG. 35 shows a communication device in an elevator installed on a three-story building. However, the present invention is not limited thereto, and the same applies to an elevator installed on an arbitrary number of floors in a building. Embodiments can be applied. If short-range wireless communication can be applied, that is, if the operation panel 8 and the wireless terminal 11 perform wireless communication when approaching each other, it is not always necessary to provide the wireless terminal 11 at each landing on each floor. FIG.
In FIG. 1, the number of operation panels is one, but a plurality of operation panels 8, 9, and 10 may be provided as shown in FIG.

[0052]

According to the present invention, the number of wirings inside a car is reduced. Furthermore, since the operation panel and the terminal communicate at a relatively short distance, the reliability or reliability of the communication is improved.

[Brief description of the drawings]

FIG. 1 shows an elevator communication device according to a first embodiment of the present invention.

FIG. 2 shows the configuration of an elevator according to the prior art.

FIG. 3 shows an appearance structure of a control input device according to the related art.

FIG. 4 shows an appearance structure of a display according to the related art.

FIG. 5 shows an external structure of a control input device according to the first embodiment.

FIG. 6 shows an appearance structure of a display device according to the first embodiment.

FIG. 7 is a diagram for explaining communication contents according to the first embodiment.

FIG. 8 is a diagram illustrating a communication method according to the first embodiment.

FIG. 9 shows an internal configuration of a wireless terminal according to the first embodiment.

FIG. 10 shows an internal configuration of a control input device according to the first embodiment.

FIG. 11 shows an internal configuration of a display device according to the first embodiment.

FIG. 12 is a flowchart illustrating a transmission procedure of a control unit.

FIG. 13 shows a process at the time of reception.

FIG. 14 shows the internal processing of the microcomputer when the destination floor registration button is pressed.

FIG. 15 shows a data format of an additional registration floor signal.

FIG. 16 shows a process at the time of a timer interrupt.

FIG. 17 shows a format of a table.

FIG. 18 shows a format of a table.

FIG. 19 shows the timing of a timer interrupt number and a request number.

FIG. 20 shows a process when a control input unit receives an interrupt.

FIG. 21 shows a format of an additional registration completion signal.

FIG. 22 shows a format of a registered floor extinguishing signal.

FIG. 23 shows a procedure for transmitting a door opening / closing signal from a control input device.

FIG. 24 shows a process when a wireless terminal accepts an interrupt.

FIG. 25 shows processing when a wireless terminal accepts an interrupt.

FIG. 26 shows a process when the display accepts an interrupt.

FIG. 27 shows a format of a car position signal.

FIG. 28 illustrates battery management for the operator panel.

FIG. 29 shows a format of a car lighting control signal emitted from the operation panel.

FIG. 30 shows the operation of the operation panel removal alarm system.

FIG. 31 shows a second embodiment of the present invention.

FIG. 32 shows an internal configuration of a wireless terminal according to the second embodiment.

FIG. 33 shows a failure detection and switching process according to the second embodiment.

FIG. 34 shows a format of a reply request signal.

FIG. 35 shows a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Elevator car, 2 ... Hoistway wall, 3 ... Equipment box, 4 ... Tail cord, 5 ... Control device, 6 ... Pulley, 7 ...
Lighting in the car, 8, 9 ... Control input device, 10 ... Display device, 11
... wireless terminal, 12 ... antenna, 13 ... solar cell.

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Sadao Hokari 1070 Ma, Hitachinaka-shi, Ibaraki Pref., Ltd. Inside Mito Building System Division, Hitachi, Ltd. Address F-term (reference) 3F002 GA05 3F303 BA04 FA14 5K048 AA01 BA47 CA08 DB01 DC01 EA11 EB02 EB14 FB08 FB11 FC01 HA01 HA02 HA05 HA07

Claims (13)

[Claims] 1. A signal provided for the communication, comprising: an operation panel provided inside an elevator car and having a wireless communication device; and a terminal communicating with the operation panel via the wireless communication device by short-range wireless communication. Is a communication device of the elevator, which is transmitted between the control device of the elevator and the terminal. 2. An operation panel provided inside an elevator car and having a wireless communication device, and a terminal provided on the car and communicating with the operation panel wirelessly via the wireless communication device, An elevator communication device in which a signal related to the communication is transmitted between the elevator control device and the terminal. 3. An operation panel provided inside a car of an elevator and having a radio communication device; and an operation panel provided outside the car and being close to the operation panel when the operation panel is provided via the radio communication device. A terminal that performs short-range wireless communication, wherein the communication-related signal is transmitted between the elevator control device and the terminal. 4. The elevator communication device according to claim 3, wherein the terminal is provided on a landing side of the elevator. 5. The method according to claim 1, wherein
The operation panel is an elevator communication device that is a control input device or a display device. 6. The method according to claim 1, wherein
The frequency band of the wireless communication device is 322 MHz or less, and the electric field strength at a position 3 m away from the wireless communication device is 50
0 μV / m or less, or the frequency band of the wireless communication device is 322 M to 10 GHz and 3 m from the wireless communication device
The electric field strength at a distant position is 35 μV / m or less, or the frequency band of the wireless communication device is 10 G to 150 GHz and the electric field strength at a position 3 m away from the wireless communication device is 500 μV / m or less, or the wireless communication An elevator communication device in which the antenna power of the device is 10 mW or less. 7. The method according to claim 1, wherein
The operator panel is an elevator communication device that generates an alarm when it is taken out. 8. The method according to claim 1, wherein
Further, a secondary battery for supplying power to the operation panel, and a solar battery for charging the secondary battery, and when the remaining amount of the secondary battery is less than or equal to a predetermined value, the wireless communication device An elevator communication device for transmitting a wireless signal for turning on the lighting inside the car. 9. The method according to claim 1, wherein
The elevator communication device further includes a secondary battery that supplies electric power to the operation panel, and when a remaining amount of the secondary battery becomes equal to or less than a predetermined value, an indicator light or a response light of the operation panel blinks. 10. An operation panel provided inside an elevator car and having a wireless communication device, and a terminal that wirelessly communicates with the operation panel via the wireless communication device. Transmitted between an elevator control device and the terminal, wherein the frequency band of the wireless communication device is 322 MHz or less and the electric field strength at a position 3 m away from the wireless communication device is 5
00 μV / m or less, or the frequency band of the wireless communication device is 322 M to 10 GHz and 3
The electric field strength at a position m away from the wireless communication device is 35 μV / m or less, or the frequency band of the wireless communication device is 10 GHz to 150 GHz and the electric field strength at a position 3 m away from the wireless communication device is 500 μV / m or less, or the wireless communication device An elevator communication device in which the antenna power of the communication device is 10 mW or less. 11. An operation panel provided inside an elevator car, having a radio communication device, and communicating with a control device of the elevator via the radio communication device, wherein the operation panel is taken out. Elevator communication device that generates an alarm. 12. An operation panel provided inside an elevator car, having a radio communication device, communicating with the elevator control device via the radio communication device, and a secondary power supply for supplying power to the operation panel. A battery, and a solar cell for charging the secondary battery, and when the remaining amount of the secondary battery is equal to or less than a predetermined value, the wireless communication device is configured to turn on lighting inside the car. An elevator communication device that sends out radio signals. 13. An operation panel provided inside an elevator car, having a radio communication device, and communicating with the elevator control device via the radio communication device, and a secondary power supply for supplying power to the operation panel. And a battery, wherein when the remaining amount of the secondary battery becomes equal to or less than a predetermined value, an indicator light or a response light of the operation panel blinks.